The Company of Biologists

Table 3.

Morphological parameters, air temperature and maximum vertical force production for two orchid bee species in each of 2 years, and results of an ANOVA evaluating between-year differences in the means

	Euglossa imperialis					Eulaema nigrita
	1997	1998	P (d.f.=1,27)	1997	1998	P (d.f.=1,15)
m (mg)	166.3±24.5	165.5±21.8	0.93	414.1±62.5	378.7±20.2	0.20
m_th (mg)	63.7±7.3	64.1±6.8	0.88	162.6±20.2	163.2±14.0	0.95
m_a (mg)	44.2±12.0	46.2±10.8	0.66	140.9±47.6	111.6±16.0	0.17
S (cm²)	0.368±0.02	0.350±0.031	0.09	0.753±0.05	0.733±0.07	0.52
R (cm)	1.11±0.04	1.10±0.03	0.39	1.56±0.07	1.54±0.04	0.54
AR	6.70±0.27	6.93±0.40	0.09	6.44±0.22	6.47±0.41	0.83
p_w (N m^-2)	22.1±2.6	23.2±2.0	0.24	26.9±3.1	25.4±2.2	0.33
T (°C)	24.9±1.5	28.8±0.7	<0.001^{^***}	26.4±1.7	28.3±0.5	0.015^{^*}
F_vert/mg	2.01±0.12	thin string: 1.49±0.33	^a	2.13±0.25	thin string: 2.05±0.39	^a
		thick string: 1.37±0.24	^a		thick string: 1.85±0.34	^a

	Euglossa imperialis					Eulaema nigrita
	1997	1998	P (d.f.=1,27)	1997	1998	P (d.f.=1,15)
m (mg)	166.3±24.5	165.5±21.8	0.93	414.1±62.5	378.7±20.2	0.20
m_th (mg)	63.7±7.3	64.1±6.8	0.88	162.6±20.2	163.2±14.0	0.95
m_a (mg)	44.2±12.0	46.2±10.8	0.66	140.9±47.6	111.6±16.0	0.17
S (cm²)	0.368±0.02	0.350±0.031	0.09	0.753±0.05	0.733±0.07	0.52
R (cm)	1.11±0.04	1.10±0.03	0.39	1.56±0.07	1.54±0.04	0.54
AR	6.70±0.27	6.93±0.40	0.09	6.44±0.22	6.47±0.41	0.83
p_w (N m^-2)	22.1±2.6	23.2±2.0	0.24	26.9±3.1	25.4±2.2	0.33
T (°C)	24.9±1.5	28.8±0.7	<0.001^{^***}	26.4±1.7	28.3±0.5	0.015^{^*}
F_vert/mg	2.01±0.12	thin string: 1.49±0.33	^a	2.13±0.25	thin string: 2.05±0.39	^a
		thick string: 1.37±0.24	^a		thick string: 1.85±0.34	^a

Values are means ± 1 s.d.

m_th, thoracic mass; m_a, abdominal mass; S, total wing area; T, air temperature in flight chamber; other symbols as in Table 1.

See text for between-year and between-string comparisons

P<0.05

***

P<0.001

View Large

This Feature Is Available To Subscribers Only